Nut-lock



(No Model.) l 1 T. OLDROYD.

NUT LOCK.

No. 569,423. Patente'dfOOt. 1 3, 1896.-

Wl TNESSS: INVEN TOI? UNITED STATES PATENT OFFICE.

THOMAS OLDROYD, OF NEN LONDON, CONNECTICUT.

SPECIFICATION forming part of Letters Patent No. 569,423, dated October13, 1896.

Application filed March l0, 1896.

To @ZZ whom, it may concern:

Be it known that l, THOMAS OLDRoYD, a citizen of the United States, anda resident of NewLondon, in the county of New London and State ofConnecticut, have invented certain new and useful Improvements in Nut-Iiocks, of which the following is a speciiication, reference being hadto the accompanying drawings, forming a part thereof, in which similarletters of reference indicate corresponding parts.

This invention relates to the spindles of vehicles, such as carriages,trucks, wagons, duc., and the object thereof is to provide an improvednut-lock for securing in position upon the spindles the nuts by whichthe wheels are held thereon.

The invention is fully disclosed in the following specication, of whichthe accompanying drawings form a part, in which- Figure lis a side viewof a portion of a spindle of a vehicle, showing the nut mounted thereonin central vertical section and also showing the means by which said nutis locked in position. Fig. 2 is an end view of the nut on the line 2 2of Fig. l, showing an outer cap or cover which I employ in section; Fig.3, a section on the line 3 3 ofl Fig. l, and Fig. I an end view of thespindle with the nut and the cap removed.

In the drawings forming part of this specification, A represents thespindle of avehicle, and the spindle A is provided with a reducedscrew-threaded extension ce, on the end of which is formed a shortcylindrical extension a2, which is provided on its opposite sides withshoulders or projections d3, which are formed on a radial line and thesides of which are cut out at right angles to the shoulders orprojections. I also provide a nut B, having an annular flange or rim b,and said nut is provided with a transverse slot h2 in the outer endthereof, and pivoted between the sides of Jthe nut which are formed bysaid slot is a lever D, one end of which projects through the slotslightly beyond the walls of the nut, as shown at d, and the other endof which is provided with a project-ion or shoulder d2, which is adaptedto operate in connection with the shoulders or projections co3 on theextensions ai of the spindle, and mounted Serial No. 582,555. (Nomodel.)

between the outer end of the leVerD and the inner wall of the slot b2 isa spiral spring E, which operates to force the outer end of the leveroutwardly and the shoulder or projection d2 thereon into engagement withone of the shoulders or projections a3. I also provide a removable capor cover G, and this cap or cover is rectangular in cross-section, so asto correspond with the shape of the nut B, which is similarly formed,and each side of the cap or cover G is provided with longitudinalgrooves in its inner walls, as shown at g, into one of which the outerend of the lever D projects.

The operation will be readily understood from the foregoing descriptionwhen taken in connection with the accompanying drawings and thefollowing statement thereof. Vhen it is desired to remove the nut, thecap G must first be removed and the outer end of the lever D pressedinwardly, after which the nut B may easily be detached from the spindlein the usual manner. The nut B is screwed onto the spindle in the samemanner as ordinary nuts, the shoulders or projections cl2 of the levermoving freely over the shoulders or projections CL2 to permit of thisoperation, but said nut cannot be turned backwardly without pressing inthe outer end of the lever, as above described, so as to liberate theshoulder or projection d2 thereon from the shoulders or projections a3.The cap G is held in place by friction or by small inwardly-directedlugs or rounded projections g2, Which are adapted to operate incorresponding depressions formed in the side of the nut, and said cap isalso, preferably, composed of stijf spring metal.

This device is simple in construction and operation and perfectlyadapted to accomplish the result for which it is intended, and it may beapplied to the ends of bolts, rods, spindles, and shafts whereverlock-nuts are required.

Having fully described my invention, I claim as new and desire to secureby Letters Patent The combination with the end of a spindle, rod orbolt, of the herein-described nut which is adapted to be mountedthereon, said spindle being provided with a cylindrical extension onwhich are formed shoulders or projections, said nut having an annulariiangc or IOO riin B, and having formed therein a transverse slot b2, inwhich is pivoted a lever D, one end of Which projects through the slotslightly beyond the Walls of the nut, the other end of said shoulderbeing provided with a projection cl2 adapted to operate n connectionWith the Shoulders or projections in the eX- tension of the spindle, anda spiral spring E adapted to force the end of the lever outwardly, and acap or cover G, rectangular in cross-section, and having formed in oneside thereof longitudinal grooves adapted to receive the end of saidlever, as set forth.

In testimony that I claim the foregoing as my invention I have signed myname, in presi 5 ence ofthe subscribin g Witn esses, this 5th day ofMarch, 1896.

THOMAS oLDRoYD.

IVtnesses:

JOHN F. SULLIVAN, .ToHN C. GrEARY.A

